error 3600 itunes 12.6.2.20 while update
iPad Air Wi-Fi, iOS 10.3.3, Recovery mode stock
iPad Air Wi-Fi, iOS 10.3.3, Recovery mode stock
I had this exact same problem and what it turns out to be is a communication problem with the device and computer when trying to do the restore. I had to use a different computer which then worked. i am still not able to get it to work on my normal computer and still don't know why. Try on a different computer and see how you go.
i have the same error and i don't now what to do, if you have the anwser please reply
error 3600 itunes 12.6.2.20 while update